1. Review of industrial minerals of ethiopia;Abera;AGID Rep. Ser. Geosci. Int. Dev.,1994
2. Regional geochemical mapping in developing countries and is application to environmental studies;Appleton;Appl. Geochem.,1992
3. Section 2Formation of mineral deposits;Arndt;Geochem. Perspect.,2017
4. The precambrian geology of ethiopia: a review;Asrat;Afr. Geosci. Rev.,2001
5. The mineral industry of Ethiopia: present conditions and future prospects;Getaneh;J. Afr. Earth Sci.,1985